 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  ******************************************************************************/

 package org.eclipse.ui.internal.navigator.extensions;

 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.swt.dnd.DragSourceEvent;
 import org.eclipse.swt.dnd.Transfer;
 import org.eclipse.ui.navigator.CommonDragAdapterAssistant;

 /**
  * A Skeleton implementation of {@link CommonDragAdapterAssistant}.
  *
  * @since 3.2
  *
  */
 public final class SkeletonCommonDragAssistant extends
         CommonDragAdapterAssistant {

     /**
      * The singleton instance.
      */
     public static final SkeletonCommonDragAssistant INSTANCE = new SkeletonCommonDragAssistant();

     private static final Transfer[] NO_TRANSFER_TYPES = new Transfer[0];

     private SkeletonCommonDragAssistant() {
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.navigator.CommonDragAdapterAssistant#getSupportedTransferTypes()
      */
     public Transfer[] getSupportedTransferTypes() {
         return NO_TRANSFER_TYPES;
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.navigator.CommonDragAdapterAssistant#setDragData(org.eclipse.swt.dnd.DragSourceEvent,
      * org.eclipse.jface.viewers.IStructuredSelection)
      */
     public boolean setDragData(DragSourceEvent anEvent,
             IStructuredSelection aSelection) {
         return false;

     }

 }

